/*
 * Copyright (C) 2017-2019 Dremio Corporation
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package com.dremio.exec.planner.physical;

import org.apache.calcite.plan.RelOptRule;
import org.apache.calcite.plan.RelOptRuleCall;
import org.apache.calcite.plan.RelOptRuleOperand;
import org.apache.calcite.plan.RelTraitSet;
import org.apache.calcite.rel.RelNode;

public abstract class Prule extends RelOptRule{
  public Prule(RelOptRuleOperand operand, String description) {
    super(operand, description);
  }

  public Prule(RelOptRuleOperand operand) {
    super(operand);
  }

  public static RelNode convert(RelNode rel, RelTraitSet toTraits){
    toTraits = toTraits.simplify();

    PlannerSettings settings = PrelUtil.getSettings(rel.getCluster());
    if(settings.isSingleMode()){
      toTraits = toTraits.replace(DistributionTrait.ANY);
    }

    return RelOptRule.convert(rel, toTraits.simplify());
  }

  public static boolean isSingleMode(RelOptRuleCall call){
    return PrelUtil.getPlannerSettings(call.getPlanner()).isSingleMode();
  }

}
